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notka56 [123]
3 years ago
13

A. Bone B. Organ systems C. Organs D. Specialized cells

Biology
1 answer:
Grace [21]3 years ago
7 0
Hydra has reached the tissue grade of organization, but it lacks organs. It consists of a tube about 5 mm long formed by two epithelial layers (endoderm and ectoderm). It has a head consisting of a mouth surrounded by a ring of tentacles at one end and an adherent disk, the foot, at the other end.
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A pea plant purebred to produce round yellow peas is crossed with a plant purebred to produce wrinkled green peas. Round pea sha
krok68 [10]

Answer:

1 out of 16 or 1/16

Explanation:

Let:

R = Round seed      r = wrinkled seed

Y = Yellow seed     y = green seed

Starting from the parent generation or the P generation, the genotype of the parents would be:

RRYY x rryy

This is because the cross is between a parents that are "purebred" for specific traits. This means that the parents are homozygous for the traits which in genotype form is represented by either two capital letters or two lower case letters.

Attached is the F1 generation results between a cross between the P generation.

As you can see the genotype of all the offsprings is RrYy.

Now also below is the cross between the F1 generation offsprings.

For recessive traits, it is only expressed when the dominant gene is not in the genotype, or in other words, the genotype is all in small letters. Since we are looking at two traits, you need to look for how many squares out of the total have all lowercase letters.

There is only 1 rryy out of the 16 predictions. So the answer would be 1/16.

6 0
3 years ago
Why aren't human hunters a threat to polar bears anymore?
andre [41]
Because the biggest threat to them is climate change!
5 0
3 years ago
Read 2 more answers
In science, a theory:________.a. encompasses many hypotheses. b. cannot be tested. c. is more narrow in scope than a hypothesis.
Ugo [173]

Answer:

is A

Explanation:

8 0
3 years ago
Why might some plants store their food (carbohydrates) in their roots?
Aleks [24]

Answer:

so they have more carbons in there roots then there leaves and stuff that fall off

Explanation:

8 0
3 years ago
How does photosynthesis help (1) humans and (2) animals?
My name is Ann [436]

Answer:

<h2><u>Humans</u> : Through photosynthesis, humans can again breathe in the oxygen that was produced and survive. ... In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and </h2><h2>humans help plants "breathe" by providing them with carbon dioxide</h2>

<h2>(✿ ♡‿♡)</h2>

<h2>ANIMALS : </h2><h2>Photosynthetic organisms take light energy and use it to make their own "food". In this process they use </h2><h2>carbon dioxide and light to make sugars and oxygen. This is great for other animals that utilize this oxygen and eat the plants for food.</h2><h2 /><h2>(*˘︶˘*).。*♡</h2>

<h2><em><u>PLEASE</u></em><em><u> </u></em><em><u>MARK</u></em><em><u> ME</u></em><em><u> BRAINLIEST</u></em><em><u> AND</u></em><em><u> FOLLOW</u></em><em><u> ME</u></em><em><u> LOTS</u></em><em><u> OF</u></em><em><u> LOVE</u></em><em><u> FROM</u></em><em><u> MY</u></em><em><u> HEART'AND</u></em><em><u> SOUL</u></em><em><u> DARLING</u></em><em><u> TEJASWINI</u></em><em><u> SINHA</u></em><em><u> HERE</u></em><em><u> ❤️</u></em></h2>

6 0
3 years ago
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