Biology High School

What chemical family is sodium in?
O a
alkali metals
b
alkali earth metals
C
transition metals
Od
halogens

Answers

Answer 1

Answer:

a) alkali metals

Explanation:

group 1 elements (except for hydrogen) are alkali metals

Answer 2

Answer:

alkali metals

Related Questions

Does a domain or kingdom contain more organisms?

Answers

Answer:

A domain contains more organisms

Answer:

The chart below shows how the kingdoms have changed over time.

Explanation:

As scientists began to understand more about DNA, evolutionary biologists established a new taxonomic category—the domain. A domain is a larger and more inclusive category than a kingdom. There are three domains—Bacteria, Archaea, and Eukarya.

Please make it in-depth with grammar and punctuation, What is a Stem Cell.

Answers

Answer:

Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.

Examples: Embryonic stem cells, or amniotic fluid stem cells

Explanation:

I just gave you a definition with correct punctuation and two examples you could use:)

Polyculture and permaculture methods reduce many agricultural tasks, limiting the soil *blank* that can result from mechanical cultivation and from foot traffic, which is particularly useful when cultivating soils with a high clay or silt content​

Answers

Answer:

was the answer growth? I'm redoing the test and I want to know if that was the correct answer

Explanation:

What are some examples of natural hazards that can occur quickly with little or no warning?

Answers

1) Earthquakes
2) Volcanic eruptions
3) Flash floods
all occur with little warning but happen fast

Answer:

landslides

Explanation:

Thunder storm

Wildfire

Eruption

How many MYA was the mass extinction of dinosaurs, ammonoids, and many land plants?

Answers

The Cretaceous–Paleogene (K–Pg) extinction event (also known as the Cretaceous–Tertiary (K–T) extinction) was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago.

what is homeostasis?

Answers

something in biology
a property of cells, tissues and organisms that allows maintenance and regulation of the stability that the body needs to function properly

helppppp meeeeee plsssss

Answers

Answer:

Solar eclipse

Explanation:

Solar  eclipse happens when the moon is covering up the sun. As the picture is showing, the moon is covering up the sun and casting a shadow onto the earth.

Why is the by catch from industrialized fishing so harmful for ocean ecosystems?

Answers

i need a picture sorry

How do clouds affect climate? Check all that are true.A( by producing patterns of precipitation B( by reflecting around one-fourth of the Sun's energy that reaches Earth back into space C( by reflecting most of the Sun's energy back into space D( by producing the same level of precipitation in all climate zones​

Answers

Answer:

i believe its

✓A

✓D

Explanation:

Explain what the ATP molecules formed during the light dependent reaction are used for:

Answers

Answer:

Explanation:

The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle.

Hope it helped you.

what is The movement of materials across the cell membrane using transport proteins

Answers

Answer:

Facilitated diffusion is a process by which molecules are transported across the plasma membrane with the help of membrane proteins.

Explanation:

Answer:

Facilitated diffusion

Explanation:

Why is the presence of chlorophyll in plants important?
1. it creates ATP to power the process
2. it captures water to be used in the process
3. it assembles the sugar
4.it absorbs the solar energy needed to create the sugar

Answers

it absorbs the solar energy needed to create the sugar

Answer:

It absorbs the solar energy needed to create the sugar

Which is NOT a PROTOZOAN?

A flagellate
B ciliate
C sporozoan algae
D algae

​

Answers

The answer is D, algae.

—Evidence—
•] Protozoan definition: a single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an amoeba, flagellate, ciliate, or sporozoan.
•] it does not feature algae, therefore it’s D.

mRNA S' 3' A G C D G A 0 0 0 A G C G G A C A A GA U CGC TT Asp C 더 Ala Leu Leu Ala What is the purpose of this process? F. To replicate the DNA of an organism before cell division G To assemble nucleotides in an mRNA chain along a DNA template H To synthesize amino acids used to unzip strands of DNA and copy the genetic code 3 To translate the genetic code into a specific sequence of amino acids F G O O bo c d 0​

Answers

Huh??? What does this even say?

What are three things you learned about the
planets and their moons from the explorations of Curiosity and other satellites?

Answers

Answer:

I agree with the other person that answered...

Explanation:

I will give you a fun fact though, stars are made up of gasses and energy and Pluto isn't a real planet :)

To be considered members of the same species, organisms must be able to
A. look alike
B. reproduce together & have fertile offspring
C. live in the same habitat
D. eat the same types of food​

Answers

Answer:

B. Reproduce together and have fertile offspring

Explanation:

In order to reproduce, a species needs to have the same number of chromosomes, which determines whether or not these two organisms are part of the same species. I hope this helps!

B. reproduce together & have fertile offspring

What body structured indicate that mammals descended from reptiles?

Answers

Explanation:

Many of the most important and diagnostic mammalian characteristics serve to further intelligence and sensibility, promote endothermy, or to increase the efficiency of reproduction or the securing and processing of food.

Basic structural body plan is inherited from Therapsid mammal-like reptiles.

Survival through mammalian evolution was perhaps due to their ability to move and to think more quickly than their Archosaurian counterparts.

Morphological trends were toward structural simplification:

� skull and jaw bones lost or reduced in size

� limbs and limb girdles simplified, reduced, and less laterally splayed

Fossil record provides little evidence on when endothermy actually developed.

Diagnostic or Distinguishable Characteristics of Mammals:

Soft Tissues

Skin glands: Mammalian skin contains several kinds of glands not found in other vertebrates.

Mammary Glands: Provide nourishment for the young during their postnatal period of rapid growth.

Tom described a certain phase in mitosis as follows: The centromere splits. The paired chromosomes separate and shift to the opposite sides of the cell, which stretches the cell. Which of the following phases will take place just after the phase described by Tom?

Anaphase
Metaphase
Prophase
Telophase
!!!PLEASE HELP!!!

Answers

Answer:

I'm not 100% sure, but I think its the Telophase.

Explanation:

The third phase of mitosis is called anaphase. This is when the separation starts. The centromere of each chromosome splits. The spindle fibers shorten and pull the sister chromatids apart until they are on opposite ends of the cell. Each chromatid is now a single, unreplicated chromosome. As a result of this, the cell stretches out. The phase after this is telophase.

Answer:

Ik I'm late but Telophase

Explanation:

took the quiz and got it right  

Which of these groups is the smallest level of classification?
O A. Phylum
O B. Class
O C. Order
O D. Family

Answers

Answer:

family

Explanation:

In a cross between two heterozygous tall and purple flowers (TtPp x TtPp), what would the
ratio be?

Answers

Answer:

9:3:3:1

Explanation:

This question involves two different genes coding for height and flower color respectively. The first gene posseses allele T (dominant) and t (recessive) while the second gene possesses allele P (dominant) and p (recessive).

According to this question, two heterozygous tall and purple flowers are crossed i.e. (TtPp x TtPp). Each parent will produce the following gametes combination:

TtPp - TP, Tp, tP, tp

Using these gametes in a punnet square, the following proportion of offsprings will be produced:

T_P_ (tall, purple) = 9

T_pp (tall, white) = 3

ttP_ (short, purple) = 3

ttpp (short, white) = 1

Hence, the ratio of this cross is 9:3:3:1


An object with a kinetic energy of 200 J and Potential energy of 300 J, has a mechanical energy of what?

Answers

Answer:

500 J

Explanation:

Emechanical=U+K,i.e., the mechanical energy Emechanical is the sum of the potential energy U and kinetic energy K.

So, the object has a mechanical energy of 200+300=500 J.

ASAP: Fill in the Genotype of each family member in
the blue boxes.

Earlobes are Autosomal Recessive.

Answers

top left circle- ee
top right square- Ee
bottom two are- ee
(the letter does not have to be “e,” you can change it and label it to whatever but make sure the uppercase and lowercase stay the same

HELP! Label this image regarding protein synthesis

Answers

Answer:

wow high school work

Explanation:

Translation: process of protein formation is called translation .

In the process of translation, a cell reads information from a molecule called a messenger RNA  and uses this information to build a protein.  Translation involves “decoding” a messenger RNA  and using its information to build a polypeptide, or chain of amino acids .

Who developed the modern system of classifying organisms? *

Answers

Answer: Carl Linnaeus

Explanation:

Answer:

Carl Linnaeus

Explanation:

hope it helps!!

18. What is precipitation that falls on land and flows over the surface of
the ground?

Answers

Think that would be called Run off.

Please help 20 points and brainliest.

Answers

What are the questions that go with the model?

Answer the question below

Answers

Answer:

Here is the answer:

Explanation:

eukaryote: 10-100 microns; larger cell type, complex, major organelles, nucleic acid, ribosome

Both: cytoplasm, cell membrane

prokaryote: 1-10 microns, smaller cell type, cell membrane, no major organelles, simple

1) Complete the following statement. Our solar system is part of the _________ galaxy.
A) Vega
B) Solar System
C) Milky Way
D) Spiral Way

2) The speed of light can be used to measure the _______.
A) time of a planet's rotation
B) distance between objects in space
C) mass of astronomical bodies
D) densities of stars

3) Which list accurately identifies the hierarchy of space from largest to smallest?
A) Universe, solar system, galaxy, planet
B) Galaxy, solar system, universe, planet
C) Galaxy, solar system, universe, moon
D) Universe, galaxy, solar system, moon

4) Which list accurately identifies the hierarchy of space from smallest to largest?
A) Universe, solar system, galaxy, planet
B) Galaxy, solar system, universe, planet
C) Moon, solar system, galaxy, universe
D) Universe, galaxy, solar system, moon

5) Which list accurately identifies the hierarchy of space from largest to smallest?
A) Solar system, galaxy, planet, universe
B) Galaxy, solar system, planet, moon
C) Galaxy, solar system, universe, moon
D) Solar system, universe, galaxy, moon

Answers

Answer:

1) C

2)B

3)D

4)C

5)B

Explanation:

ez i like astronomy alot

Answer:

1) C

2) B

3) D

4) C

5) B

Explanation:

In humans, the "A" allele codes for Type A blood, the "B" allele codes for Type B blood, and the "o" allele codes for Type O blood. "A" and "B" are both dominant to "o." A and B are codominant to each other.

What is the genotypic ratio of a cross between a mother who is heterozygous Type A and a father who is heterozygous Type B?

A. 1 AB : 1 A0:1 Bo : 1oo

B. All AB

C. 2 AA: 2 BB

D. 1 Ao: 2 00:1 Bo​

Answers

Heterozygous means having two different alleles.
The A allele and B allele are dominant. This means that they will be the main allele to express itself. If someone has an A and an o allele, which is recessive, the A allele would express itself over the o allele. A and B are codominant - meaning that if someone had both A and B alleles they’d have type AB blood, as they’d both express.

The mother is heterozygous type A - that means she has one A allele and one o allele
The father is heterozygous type B - meaning he has one B allele and one o allele. I know that it is Bo because if it was BA then he’d have type AB blood because the A and B alleles are codominant.

The genotype ratio is a ratio saying what the chances are of having one type of something (ex blood type, eye color) given the alleles of parents. To find this out make a punnet square with A o on top and B o on the side. Fill it in. I’ve attached a pic of what it will look like.

As you can see 1/4 is AB, 1/4 is Ao, 1/4 is Bo and 1/4 is oo. So the ratio will be letter A: AB:Ao:Bo:oo

How would you explain the reasons for dividing time into four eras? What are the major characteristics of each era? *

Answers

Answer:

Eons, Eras, Periods, Epochs.

Explanation:

Answer:

Explanation:

Here is a brief look at the four periods of the Geologic Time Scale that ... The Precambrian, Paleozoic, Mesozoic, and Cenozoic Eras

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