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jek_recluse [69]
3 years ago
8

Jackie and Kim are each holding one end of a rope. Jackie moves her end quickly up and down. The rope moves up and down, as show

n below.
What are Jackie and Kim modeling when Jackie moves the rope up and down?
A.
a circuit
B.
a magnet
C.
a prism
D.
a wave
Reset Submit
Biology
1 answer:
Eduardwww [97]3 years ago
6 0

Answer: A wave

Explanation: Waves move in that kind of up and down motion, a circuit is a straight line with energy flowing through it, a magnet is a pulling effect and a prism is a shape, not necessarily a motion.

Hope this helps ^_^

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No stripe on the head (H) is dominant, a black stripe on the head is recessive. If dad's genotype is Hh, what are the odds that
olga55 [171]

The chance of the offsprings with stripe on head is 50%.

Option A.

<h3><u>Explanation:</u></h3>

Here according to the figures, the male is the brown one which has no stripe on his head as mentioned, and the female is the pink one who has a stripe on her head. The gene for the head stripe is denoted by H.

So the genotype of the father which is given as Hh. He is heterozygous.

The genotype of the mother should be hh as she has stripe and she must be homozygous recessive to have it.

So the gametes from father is H and h. Whereas the gametes from mother is only h.

So the genotype of the offsprings are Hh and hh as 50% each.

So the probability of the offspring being striped head is 50%.

7 0
3 years ago
Scientists have recently discovered a community of bacteria and clams living under an ice shelf in Antarctica. These organisms l
Shkiper50 [21]

Answer:

Option 3, of the abiotic factors found in their environment

Explanation:

The abiotic factors such as absence of sunlight and extremely cold temperature represents picture of an extreme habitat under an ice shelf in Antarctica.  

The optimum temperature requirements of bacteria for its survival ranges from 10oC to 20oC. In case,  if a bacteria lives in an environment where temperature is less than -5oC or higher than  50oC, then such habitats are considered to be “habitats with extremities”  as special physiological mechanisms are required to maintain the homeostasis and survive.

Likewise absence of sunlight further adds to the extremities of the habitat.

Option 3, is correct

5 0
3 years ago
Which characteristic do protozoans Foraminiferans (Phylum Sarcodines) and coccolithophores (Phylum Haptophyta) have in common?
shtirl [24]

The common characteristic of those two organisms is hard spherical shells (exoskeleton).

Foraminiferans are single cell marine eukaryotes divided into granular endoplasm and transparent ectoplasm. Foraminiferans are enveloped with tests, hard shells, usually composed of calcium carbonate (sometimes from organic compounds or silica).

Coccolithophore is a unicellular, eukaryotic alga with special calcium carbonate plates (or scales) of uncertain function (coccoliths). Each unicellular alga is enclosed in its own collection of coccoliths, the which make up its exoskeleton- coccosphere.


8 0
3 years ago
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The three major types of volcanoes are
Bess [88]
Shield, Cinder Cones & Composite Cones.
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3 years ago
What bond holds each amino acid together to make a protein?
Naddik [55]

Answer:

PEPTIDE BOND.

Explanation:

Amino acids can link with each other through a peptide bond to form a protein or polypeptide .

this is a condensation reaction that involves the elimination of water molecule.i.e a H2O molecule is produced in this reaction.

the peptide linkage occurs when the OH group of acidic side of one amino acid reacts with the H-atom of the other amino acid and C-N link to form a bond called a PEPTIDE BOND.

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