The mandible of a crayfish is used to grind food. The maxillae holds,tears, and passes the solid food to the mouth. What structures are used for capturing prey or securing and. eating food. The mandible of a crayfish is used to grind food
Scientist a set of genetic information for each form as "an allele".
<u>Explanation:</u>
The variant type of a given gene is known as "an allele" which depicts it is one of two or more versions of a recognized mutation on a chromosome at the same location. For a multi-hundred base-pair an allele is multiple sequence variations also for more locations of genome coding for a protein.
Huge amount of genes have a variety of different types, clustered on a chromosome at the same location, or genetic locus. Human beings are taken as diploid species reason behind is, as they have two alleles at each genetic locus, with each parent inheriting one allele.
Four general conditions necessary for natural selection to occur<span> are: A. More organisms are born than can survive. B. Organisms vary in their characteristics, even within a species. D. Differences in reproduction and survival are due to variation among organisms.</span>
Answer:
It acts as a weed killer by blocking photosynthesis
Explanation:
Photosynthesis is important to plants because it is their principal form of energy.
When DCMU is introduced to weeds, what it does is to block or slow down the process of photosynthesis. Carbon dioxide fixation is slowed down causing weeds to die off. DCMU strongly slows down photosystem II. When this is done, lipid and protein membranes would get destroyed and the weed cells would begin to dry and shed off