It is false that u<span>nlike third-world and developing nations, the u.s. has no incidence of hungry or malnourished people.
You can find hungry people anywhere - even in the richest countries in the world. Not everyone has the same opportunities and living conditions, so it is only normal that there will be poor people who cannot afford even food.</span>
Answer:
a. eukaryotes
b. unicellular
c. autotrophs; heterotrophs
Explanation:
Protists represent a separate kingdom of eukaryotic organisms (ie., organisms whose cells have a nucleus). The most important features of protists include: 1- they are unicellular organisms, 2-contain mitochondria, 3-can be parasites, and 4-generally live in optimal conditions in moist or aquatic environments. In the past, protists were divided into Protozoa (animal-like organisms) and Protophyta (plant-like organisms), which nowadays we know are heterotrophic (also often parasitic) and photosynthetic protists, respectively.
Answer:
The options are
A) arrange cells into tissues
B) form an embryo and establish a basic body plan
C) sense, feed, move and choose mates
D) reproduce
E) I don't know
The answer is C) sense, feed, move and choose mates
Evolution occurs after a long period of time and it occurs as a result of organisms adapting to new environmental conditions. Much of this diversity is a result of the evolution of novel ways to sense, feed, move and choose mates and the they are features which are essential in an organisms survival.
Answer:
See the answer below
Explanation:
Enzymes are biological catalysts and are quite temperature specific. They operate optimally within a certain range of temperature. At lower temperatures, their activities decrease and they become inactive at extremely low temperatures. At higher temperatures, their activities are initially promoted but as temperatures get higher, their activities become zero due to the fact that they become denatured.
A. <em>The optimum temperature for amylase activity is 37</em>
<em>, hence, when the student had the first test tube at this temperature, the rate of reaction of the enzyme is optimal. The maximum amount of starch would be broken down into maltose.</em>
B.<em> At 0 degrees, the enzyme would become inactive and the rate of reaction becomes minimal or even zero due to the inactivity of the enzyme. At 60 degrees, the rate of reaction also becomes zero because the enzyme would have been denatured by the high temperature.</em>
Answer:
Either B. or D.
Explanation:
I don't know for sure, these two answers just seem better than the others.
