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cupoosta [38]
3 years ago
12

Please help??? Science SEMESTER REVIEW!!!!

Biology
1 answer:
MAXImum [283]3 years ago
5 0
It is b the continent shifted towards the tropics <span />
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In chickens, comb shape is determined by alleles at two loci (R, r and P, p). A walnut comb is produced when at least one domina
lina2011 [118]

Answer:

RpPp x RpPp

Explanation:

For the recessive trait to be expressed, both parents should have at least 1 allele for the recessive trait. Now you can see that both recessive traits were expressed in at least one of the off-springs, this means that both parents had the allele for each recessive trait.

3 0
3 years ago
Why would an unprotected traveler's blood boil in the mesosphere?
eduard
An unprotected traveler's blood would boil at normal body temperatures because the pressure is so low. Temperatures in the mesophere decreases with altitude, because there are few gas molecules in the mesophere to absorb the sun's radiation, the heat source is the stratosphere below. The air in the mesophere has extremely low density and as a result the air pressure is very low. 
7 0
3 years ago
2. If scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to?
earnstyle [38]
The answer is B. Annelids
8 0
4 years ago
A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for an
Yuri [45]
I think the answer is either three or four I am not 100% certain but I feel like the answer for this question is going to be 3
5 0
3 years ago
The most inclusive level of organization encompasses all regions of Earth's crust, waters, and atmosphere and is called the ____
nexus9112 [7]

Answer:

The most inclusive level of organization is called the Biosphere.

Explanation:

The biological level of organization is organized from the simplest(least inclusive) to the most complex(most inclusive)

The Atom is the simplest unit. Two or more atoms will form a molecule.

The molecules come together to form a cell which is the basic functional unit of life. Cells come together to form tissues then organs and the organ system. Together they make an organism

Populations is formed by a group of the same organisms living in the same area.

Different populations will form a community. The communities together with the environment they live in form an Ecosystem.

Lastly, The Biosphere is the most inclusive and encompasses all ecosystems on Earth

5 0
3 years ago
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