Answer:
It can only act on traits that are heritable and show variation.
Explanation:
For natural selection to act on a trait, there must already be variation for that trait. In addition, the trait must be heritable, or able to be passed from parent to offspring.
A diagram of a human skeleton.
Answer:Here is a detailed form of the human skeleton.Hope it helps!
which of the following is NOT a way in which a lake can become a
forest? *
A. The plants are eaten by many animals.
B. Dead leaves settle to the bottom.
C. The soils dry out.
D. The lake is filled with sediment.
Answer: A. The plants are eaten by many animals.
Explanation:
The planets, comets, and meteors of the solar system are held
(in orbit by the Sun's.
fa. Gravity
16 Spring force
I. Friction
d. Tension
Answer:
Gravity
Explanation:
Gravity keeps the planets, comets and meteors in orbit around the sun. The sun is bigger and heavier than other planets etc, this causes the planets to be pulled and kept in orbit around the sun.
Hope this helps!
Plants and other autotrophs can not rely on photosynthesis alone for energy.
True or false
the testes in a man and the ovaries in a women are reproductive organs what is the main function of these organs in the process of reproduction
A. to pump blood through the veins and arteries of the human body.
B. to secrete waste products that are harmful to the human body.
C. to produce sex cells that join to form a developing baby.
D. to store iron that will be used to make red blood cells.
Answer:
to pump blood through the veins and arteries of the human body
Testes in man and ovary in female is a part of the reproductive organ which produce gametes, after fertilization to develop a baby, hence c is the correct option.
What are reproductive organs?
Female reproductive organs consist of the ovary which generates the ovum a female gamete that is responsible for fertilization.
Males consist of consisting of tests that generate the sperm male gamete which is responsible for fertilization.
Both organs are necessary to produce a gamete for fertilization which develops a zygote and makes the baby is developing of the cells.
Therefore, for producing sex cells ovaries and testes are important organs, hence option c is correct.
Learn more about reproduction, here:
https://brainly.com/question/11731747
#SPJ6
3'-GTGCACCTGACT-5'
Which sequence of mRNA is the correct transcription of this DNA?
Answer:
The correct answer is - 5' CACGUGGACUGA 3'
Explanation:
Transcription is one of the important processes in protein synthesis that involves encoding the genetic information of DNA into an mRNA molecule that takes it to the ribosome and translates it to amino acids.
The transcription from DNA to mRNA occurs in a complementary manner for the nitrogenous base which means adenine converts to uracil and thymine converts to adenine similarly guanine and cytosine convert in each other.
Thus, 3'-GTGCACCTGACT-5' will be translated as:
5' CACGUGGACUGA 3'
Answer:
B
Explanation:
i just the test
ASAP Help Please!! Why is bread soft and airy?
o Bacteria secreting lactic acid is breaking up the gluten
o Yeast is secreting alcohol and dissolving the gluten
o Yeast is secreting CO2 causing bubbles in the dough
o Bacteria is eating up some of the gluten
Answer:
Yeast is secreting CO2 causing bubbles in the dough
Explanation:
Answer:
option b
Explanation:
Yeast is secreting CO2 causing bubbles in the dough
where does the pollen go
Answer:
To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.
Explanation:
To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.
How does cytokinesis in animal cells differ from cytokinesis in plant cells?
Answer:
Cytokinesis occurs differently in animal and plant cells. In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form. In plant cells, a cell plate forms along the equator of the parent cell.
Explanation:
Cytokinesis occurs differently in animal and plant cells. In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form. In plant cells, a cell plate forms along the equator of the parent cell.
How many categories are there on the Modified Mercalli Scale?
Answer:
i hope this helps!!?
Explanation:
Giuseppe Mercalli (1850-1914) originally developed the scale, with ten levels. In 1902, Adolfo Cancani extended the scale to include twelve levels. August Heinrich Sieberg completely rewrote the scale. For this reason, the scale is sometimes named Mercalli-Cancani-Sieberg scale, or MCS scale.
Answer:
awsten knight
Explanation:
The spiders mentioned in the paragraph are
A
Parasites
B
Carnivores
C С
Scavengers
D
Herbivores
©2021
Illuminate Education TM, Inc.
Answer: the answer is C, Carnivores
Explanation: it says that spiders eat other insects, which makes them a Carnivores. I also have the same quiz in Illuminate but that's not really important, I just thought that it was cool that we go to the same school :)
(b) Describe the characteristics of the interior of the aquaporin channel protein that allow water to flow through AND exclude glucose.
If isolated keratinocytes are placed in a hypotonic solution for 24 hours, explain the net direction of water movement AND why the
rate of water movement slows down over time.
Answer:
Aquaporin protein is a type of protein composed of a bundle of six transmembrane α-helices.
Explanation:
Aquaporin protein is a type of protein composed of a bundle of six transmembrane α-helices. These aquaporin protein have different size of water channels that allow water through to pass through it but it does not allow glucose to move through it due to its large size. The direction of water movement is toward the cell because there is low water inside the cell as compared to outside environment so the water moves inside the cell and rate of water movement slows down over time due to filling of empty spaces with water.
helpp a biology quiz
can anyone help please?
please help in your own words i’ll mark brainliest
use an analogy to explain the sequence of events in the replication of DNA
Answer:
- There are three main steps to DNA replication: initiation, elongation, and termination.
- In order to fit within a cell's nucleus, DNA is packed into tightly coiled structures called chromatin, which loosens prior to replication, allowing the cell replication machinery to access the DNA strands.
What happens to the size of plants during sucession?
they get bigger
they get smaller
there is no change in siz
when people take a mineral and hold it up, what kind of test is that?
a) luster
b) cleavage
c) hardness
can someone plss help me??
Answer:
Luster
Explanation:
luster is the only answer that has to do with light. Luster is measured by the way a mineral reflects light.
Cleavage has to do with breaking minerals apart along certain fracture lines. Cleavage is not the answer.
Hardness is a test where one mineral is used to scratch another. The one that does the scratching is harder than the one that is scratched.
...Can someone help me identify the stages of these cells?
Answer:
hope this helps you out good luck
what comes out from capillaries
Answer: Blood moves very slowly through capillaries. As the blood moves through a capillary, nutrients, oxygen, and food leave the blood and enter the body cells. The blood also picks up wastes and carbon dioxide.
Explanation:
do boys lose the ability to scream after puberty ? not shout scream
Answer:
weird question but I don't think so-
Answer:
No, They do not.
Explanation
As you get older, your larynx grows and your vocal cords lengthen and thicken, resulting in a deeper voice. Your voice can "crack" or "break" as your body adjusts to the new equipment. However, this procedure only takes a few months, it does not affect a boys ability to scream.
ill) Age changes in white blood cells include decreases in the number and rate of release
of stored cells, rate of movement, ability to be chemically attracted to areas, and
proportion of cells capable of performing phagocytosis. Explain how these changes will
affect the human body.
(2) PLEASE HELP... Reliable answer will receive brainliest.
Answer:
it will reduce the ability of white blood cells to guide against disease
Which of the following is true about environmental hazards to humans?
A)
Children are more at risk than adults because they take in more air per unit mass than adults.
B)
Adults are most at risk because they have the highest exposure to environmental hazards.
C)
Elderly people are most at risk because their immune systems do not perform efficiently.
D)
Children are least at risk because they have well functioning immune systems.
E)
Adults are most at risk because they take in more pollutants relative to their size than children.
Answer: A)
Explanation:
Children are at a higher risk of suffering negative effects from environmental hazards than adults, because children do not have fully developed immune systems. In addition, children have a higher exposure to environmental hazards, because they spend more time outside, on average, than adults. Children also take in more air per unit mass than adults, which means that they also take in more pollutants relative to their size.
whats the structure and function of the effector
Answer:
Effectors include muscles and glands - that produce a specific response to a detected stimulus.
Explanation:
Fill in the blanks
Both anaerobic and aerobic respiration use
to produce ATP and NADH. In anaerobic respiration, NADH is regenerated to NAD+ by
, while in aerobic respiration, electrons from NADH are deposited in the
to regenerate NAD+. Anaerobic respiration produces
ATP per molecule of glucose compared to aerobic respiration.
Answer:1.A. Glycolysis;
2.A. fermentation pathways;
3.C. electron transport chain;
4.A. less.
Explanation:
whats the location of a nerve impulse?
Answer:
the place where the axon of one neuron meets the dendrite of another, using chemicals called neurotransmitters
Just want to make sure these are correct (if one is wrong then there should be another wrong answer)
Answer:
I think they're correct
Which organelle is correctly matched with the cell process it performs?
a. Nucleus -makes energy for cell to survive
b. Cell membrane - semi-permeable; controls what comes in and out of the cell
C. Mitochondria - makes proteins
d. Ribosome - the "control center" of the cell
Answer: B
Explanation:
if four cells went through mitosis at the same time how many daughter cells would be formed?
What is the significance of crossing over?
Answer and Explanation:
Crossing over is the switching of genetic material (DNA), which occurs in Prophase 1.
This all happens in Meiosis, which is the process of the formation of sperm and egg cells.
The paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.
#teamtrees #WAP (Water And Plant)
3. Which type of fossilization occurs when a sticky substance from plants captures and preserves an organism?
Permineralization
Mold
Fossil Resin
Tar
Answer:
Fossil Resin
Explanation:
The type of fossilization that occurs when a sticky substance from plants captures and preserves an organism is Fossil Resin.
Fossil resins are usually trapped in the resin that some trees and plants including amber, copal, and retinite exude.
Amber is also a fossil resin. Under the right conditions, resins polymerize and turn into copal. Copal matures into amber after several million years.