Plywoodplasticconcretefiberglasspapernylon

How many different shapes of bacteria are there name them

posledela

The three<span> basic bacterial shapes are coccus (spherical), bacillus (rod-shaped), and spiral (twisted), however pleomorphic bacteria can assume several shapes. Cocci may be oval, elongated, or flattened on one side. Cocci may remain attached after cell division.</span>

8 0

3 years ago

You’ve likely heard of polar bears (Ursus maritimus) and grizzly bears (Ursus arctos horribilis). Have you heard of a grolar bea

Karolina [17]

Answer:

allopatric speciation.

Explanation:

When the population belonging to the same biological species becomes separated from each other due to some geographical factor such that no gene flow can occur between the two separated populations then the speciation that occurs on account of this is known as allopatric speciation.
The geographical isolation that separates the two groups can be the origin of a mountain, the formation of islands, volcanic eruption, etc. which prevents the two groups fro mating with each other and ultimately causes their lineage to speciate.
Although the two separate populations are unable to mate due to geographical factors, if the two populations are allowed to mate again, given that they have not been separated very long ago, they can give rise to hybrids.
Thus, in the given question it is given that polar bears and grizzly bears have been mated and hybrids have been produced and this points out to the fact that polar bears are result of allopatric speciation.

7 0

3 years ago

Stem color of tomato plants is known to be under the genetic control of at least one pair of alleles such that A- results in the

fredd [130]

Answer:

Genotype - AaMm

Phenotype - Heterozygous purple stem and fruit with two locules

Explanation:

Given

Trait 1 - Recessive allele for green color stem is represented by a

and dominant allele for purple color stem is represented by A

Trait 2 - Production of two locules in the tomato fruit is a dominant trait and is represented by "M" and production of multiple locules in the tomato fruit is a recessive trait and is represented by "m"

F1 cross is carried between tomato plant with purple stem and fruit with two locules (AAMM) and a tomato plant that have fruit with multiple locules and a green stem (aamm)

The following offspring will be produced

AM AM AM AM

am AaMm AaMm AaMm AaMm

Genotype - AaMm

Phenotype - Heterozygous purple stem and fruit with two locules

3 0

3 years ago

PLEASE HELP!

s2008m [1.1K]

"B.) profound social and economic changes occurred" because when the industrial revolution happened a lot of how we make stuff was changed, by factories, and because of this new jobs where created. This gave people money and thus social and economic changes happened.

3 0

3 years ago

Question 8 of 11

RideAnS [48]

The answer will be B. Energy produced in the core travels outwards, moving from one particle to the next

8 0

2 years ago