4. Chromosomes are tightly coiled strands of DNA structures that exist in
pairs. Why do they exist in pairs?

Answer:

pollution of land and water

Explanation:

Pesticides, heavy metals hazardous waste and mining for metals or ores all cause land pollution.

These contaminate the land kill the useful microbes present in the soil. Moreover, when used excessively these chemical enter in our food chain and through into our body and cause various disease. Minamata disease in japan is one such example cause be mercury contamination.

These cause water pollution too. Chemical waste in water give rise to eutrophication and leaching.

The link is a virus do not click

Answer: This is a plant organism due to it having cell walls but to be specific this is classified as being in the fungi Kingdom such as mushrooms.

Fungus grow on decaying or dead organisms to help break them down Hope this helps ^_^

Answer:

It is in the plant kingdom :) :)

Answer: its a

Explanation:

Answer:

Climate change affects patterns of migration. Global warming also influences the routes of many migratory birds and their annual migration rhythm. A lot of migratory birds change their routes, shorten or completely cancel their journey as a result of changing temperatures.

Explanation: Hope this helps

Answer: well climate change can be many things like if it snows gets colder that means more nesting areas of it gets sunnier or hotter less nesting areas and if that happened then they would have to find different areas to nest at

Explanation:

Answer:

(B) vascular

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Explanation: I think its b but if  im wrong plz dont get mad at me.

Chloroplasts allow plants to capture the energy of the Sun in energy molecules. This gives energy and nutrients to the plant.

Answer:

i think the correct answer is b

Answer: G1 brainliest??

Explanation:

Answer:

Chemical energy changes into thermal energy and light energy

Answer:

chemical energy changes into thermal energy and light energy

Answer:

This is an example of parasitism

Ver a long period of time, flower shapes and color variation have changed as a direct response to attract more pollinators, such as bees and hummingbirds. This is an example of Predation. Thus, option A is correct.

A predator is a creature that eats all or a portion of the body of its victim, which may be alive or recently deceased. Predators are distinguished from decomposers, such as fungus and bacteria, which break down the remaining remnants of dead species, by the phrase "living or recently killed."

We can confidently classify a lion as a predator if we witness it devouring a zebra. However, the zebra is included in the wide definition as well! Prey for a predator can include both plants and fungi as well as living things.

Additionally, a predator is not required to kill its victim. Instead, it can just remove a part of the prey's body and leave it alive, like a grazing cow or a bloodsucking mosquito. Herbivory is the term for a predator-prey situation in which an animal or insect eats a plant; herbi- stands for plant, and -vory implies eating.

Therefore the correct option is B.

Read more about predators, here

brainly.com/question/12410124

#SPJ3

Answer:

Preistalisis

Explanation:

Peristalsis, involuntary movements of the longitudinal and circular muscles, primarily in the digestive tract but occasionally in other hollow tubes of the body, that occur in progressive wavelike contractions. Peristaltic waves occur in the esophagus, stomach, and intestines.

Answer:

Plants and animals use oxygen to respire and return it to the air and water as carbon dioxide (CO2). CO2 is then taken up by algae and terrestrial green plants and converted into carbohydrates during the process of photosynthesis, oxygen being a by-product.

Explanation:

Hope this helps

:)

Answer:

the answer is b

Explanation:

Para medir la temperatura de una manera más exacta se utiliza un termómetro. Un termómetro es el instrumento que se usa para medir la temperatura del aire. Los termómetros más comunes son tubos de vidrio huecos. En la parte inferior del tubo se encuentra  la ampolleta que contiene un líquido como alcohol o mercurio.

Answer:

UAC GGAUGG CUG

Explanation:

A=U ; G=C

Answer:

Slow down its metabolic rate and lower its body temperature

Explanation:

Skunks do not hibernate or migrate. Instead, they conserve as much energy as possible.

Answer:

This is due to evolution

Explanation:

The giraffes with longer necks can reach food more easily than the short neck giraffes so as to reach food in higher trees.

Answer: Diamonds Form from Fluids in the Mantle That Migrate Due to Plate Tectonics. Diamond is a metasomatic mineral that forms during migration of carbon-bearing fluids, which means that it forms from fluids and melts that move through the mantle.

Explanation:

Answer:

1. The meaning of a diploid chromosome is a chromosome that has two complete pairs (sets) of chromosomes (from each parent).

2. Muscle cells, bone cells, blood cells, skin cells, and nerve cells are all diploid. (most cells are minus reproductive ones).

3. Haploid chromosomes are chromosomes that only has only a single set of chromosomes that don't have pairs.

4. Reproductive cells are haploid

7. A dog would have 39 pairs of chromosomes (hence the total 78 chromosomes).

8. A dog's reproductive cell would have half of the diploid cell because it is haploid so it would have 39 chromosomes.

10.The only haploid cell out of the 5 options is the ovum/sperm cell because they are the only reproductive cells (and reproductive cells are always haploid unless they combine to make a pair and form a zygote)

Hope this helps! :D

Also sorry I didn't know 5 or 6

Answer:

Given :

Momentum of disc = 42 kg m/s

Velocity of disc = 21 m/s

To Find :

Mass of the disc.

Solution :

❖ Momentum is defined as the product of mass and it's velocity..

Mathematically, p = m × v

p denotes momentum

m denotes mass

v denoted velocity

➛ It is a vector quantity having both magnitude as well as direction.

➛ It can be positive, negative or zero.

➛ SI unit : kg m/s or N s

By substituting the given values;

➙ p = m × v

➙ 42 = m × 21

➙ m = 42/21

➙ m = 2 kg

∴ Mass of the object is 2 kg.

Knowledge BoosteR :

As per newton's second law of motion, force is measured as the rate of change of linear momentum.

Formula : F = dp / dt

Answer:

the fourth one. hope this helps:)

Explanation:

Answer:

Plant 4

Explanation:

Joshua had been giving his plants 1/2 cup two times a week. This is the control group, because it remains unchanged.

Answer:

C.

Explanation:

Try putting C.

hope this helped