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4 years ago

What is th the purpose of the spiral intestine In a shark

Biology

1 answer:

sergeinik [125]4 years ago

8 0

It is twisted to create a greater surface area for digesting and to increase the nutrient absorption.

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Explain cancer in terms of the cell cycle

vichka [17]

Answer:

hey mate this is your answer

Explanation:Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.

3 0

3 years ago

Examine the genotype for an individual who is AaBbCcDc. Predict the outcomes of meiosis and the potential gamete combinations th

Katarina [22]

Answer: 16 different gametes

ABCD
ABCd
ABcD
ABcd
AbCD
AbCd
AbcD
Abcd
aBCD
aBCd
aBcD
aBcd
abCD
abCd
abcD
abcd

Explanation:

Gamete formation involves the random and independent segregation of alleles. During anaphase 1 (meiosis), occurs the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair.

The number of gametes with different combinations is 2ⁿ, where

n = number of homologous pairs.

In the exposed example there are 4 pairs of chromosomes, so

the number of possible combinations of chromosomes = 2ⁿ = 2⁴ = 16

Individual: AaBbCcDdEe

You can make use of the fork line method to easily figure out the possible gametes.

A.......B.........C........D → ABCD

........d → ABCd

...........c.........D → ABcD

........d → ABcd

b.........C........D → AbCD

........d → AbCd

...........c.........D → AbcD

........d → Abcd

a.......B.........C........D → aBCD

........d → aBCd

...........c.........D → aBcD

........d → aBcd

b.........C........D → abCD

........d → abCd

...........c.........D → abcD

........d → abcd

7 0

3 years ago

NEED ASAP WILL GIVE 25 POINTS

expeople1 [14]

1. Plants have chlorophyll, a green pigment necessary for photosynthesis
2. Their cell walls are made sturdy by a material called cellulose
3. They are fixed in one place (they don’t move)

7 0

2 years ago

Read 2 more answers

Canaliculi structure of<br><br>

vovangra [49]

Bone canaliculi are microscopic canals between the lacunae of ossified bone. The radiating processes of the osteocytes (called filopodia) project into these canals. These cytoplasmic processes are joined together by gap junctions. ... In cartilage, the lacunae and hence, the chondrocytes, are isolated from each other.

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3 years ago

How many nodules are in a bean plant?

Deffense [45]

<span>Bean roots will have no nodules if there are no compatible Rhizobium bacteria in the soil. The nodule is a symbiotic relationship between the plant and the bacteria. Nitrogen fixing root nodules are pinkish in color. Green root nodules indicate actively reproducing bacteria that are not fixing nitrogen. The number of nodules depends on the amount of innoculant (Rhizobium) available in the soil. Look at the photos and make an estimate like x nodules per y linear inches of root. Hope this helps.

The edible part of the radish root functions as a food storage organ. The string parts of the radish root function as normal roots absorbing water and dissolved nutrients. Bean roots have no modifications for food storage. Radish roots don't have nodules. The radish root is a "tap root". The bean root is a "fiberous root"

Beans don't grown faster than radishes because of the root nodules. Bean seeds are large. Radish seeds are small. The energy stored in the bean cotyledons helps the seedling get a fast start. The radish gets a slower start from less stored energy.</span>

7 0

3 years ago